Abstract: Provided is a refrigerator. The refrigerator includes a first door opening and closing a storage chamber of a cabinet and a second door coupled to be rotatable relative to the first door by a second hinge. The second hinge includes a locking hook mounted to be reciprocally movable along a hinge coupling portion by an operation of a door opening and closing device, to be locked to engage with an engaging protrusion of the first door or unlocked from the engaging protrusion when the second door is open or closed. Through this, the locking hook can be automatically locked to or unlocked from the engaging protrusion by an operation of the door opening and closing device.

Abstract: Provided is a refrigerator. The refrigerator includes a refrigerator door including a first door opening and closing a storage chamber of a cabinet and a second door opening and closing an opening of the first door. A door opening device is installed inside the second door. The door opening device includes a pusher applying pushing force the first door by receiving a driving force of a driving unit, and a rotary wheel mounted on one side of the pusher to be contactable with the first door. The pusher can apply pushing force the first door in a state where the rotary wheel is in contact with the first door. The second door can be open by a reactive force against an applying pushing force of the pusher. Accordingly, the rotary wheel can suppress wear between the first door and the pusher of the door opening device.

Abstract: In a refrigerator according to the present invention, since the door open module disposed on the lower inner surface of the storage compartment can move the drawer assembly forward and rearward by pushing and pulling the drawer assembly disposed on the lower inner surface of the storage compartment, the drawer assembly can be pulled in or out without the gear rack or pinion gear of the door open module being directly fastened to the drawer assembly.

Abstract: The refrigerator according to the present invention includes the multi-stage rack-and-pinion assembly including at least three gear racks that are sequentially retracted and extended in the front-rear direction, thereby securing the sufficient extension distance of the drawer assembly even within the narrow storage compartment of the refrigerator.

Abstract: In a refrigerator according to the present invention, by allowing a plurality of gear racks of a rack-and-pinion assembly to be extended forward with different extension forces, a drawer assembly may be opened using only an amount of force necessary for each stage of opening the drawer assembly, thereby maximizing energy efficiency through efficient force distribution.

Abstract: In a refrigerator according to the present invention, since a locking assembly may be disengaged from a drawer assembly to store elastic energy and engaged with the drawer assembly by releasing the stored elastic energy, a door open module and the drawer assembly can be easily engaged and disengaged using only an operating mechanism using the storage and release of the elastic energy.

Abstract: In a refrigerator according to the present invention, since the door open module disposed on the side surface of the storage compartment can move the drawer assembly forward and rearward by pushing and pulling the drawer assembly disposed on the side surface of the storage compartment, the drawer assembly can be pulled in or out without the gear rack or pinion gear of the door open module being directly fastened to the drawer assembly.

Abstract: In a refrigerator according to the present invention, by allowing an elastic member to store elastic energy when a hook member rotates about a rotational center axis in a first direction and the elastic member to release the elastic energy when the elastic member rotates in a second direction, the drawer assembly can be naturally engaged and disengaged using a circular trajectory.

Abstract: A refrigerator includes: a cabinet having a storage space; a first door opening or closing the storage space and having an opening; a second door opening or closing the opening and rotatable with respect to the first door; a locking device for causing the first door and the second door to be in a locked or unlocked state in a state where the second door is closed; and a door opening device for automatically opening the second door, wherein when the door opening device is actuated, the door opening device opens the second door after moving the locking device to an unlocked position.

Abstract: A refrigerator includes a cabinet having a storage space; a door including a door unit to open or close the storage space and a drawer unit to provide a receiving space; rails to connect the door and the cabinet to through which the door is drawn in or out of the cabinet; a driving device disposed at the door unit to provide power; and an elevation device disposed at the drawer unit and connected with the driving device to move up or down at the drawer unit. The driving device includes: a motor assembly; a screw unit including a screw to be rotated by the motor assembly and a screw holder to move up or down along the screw; and a lever to connect the screw holder and the elevation device and rotate when the screw holder moves up or down. The motor assembly includes: a driving motor; and a power transmission unit to transmit power from the motor to the screw unit, and the screw is disposed to be inclined with respect to a vertical line passing in a top-bottom direction of the refrigerator.

Abstract: A refrigerator includes a cabinet having a storage space; a door including a door unit to open or close the storage space and a drawer unit to provide a receiving space; rails to connect the door and the cabinet to through which the door is drawn in or out of the cabinet; a driving device disposed at the door unit to provide power; and an elevation device disposed at the drawer unit and connected with the driving device to move up or down at the drawer unit. The driving device includes: a motor assembly; a screw unit including a screw to be rotated by the motor assembly and a screw holder to move up or down along the screw; and a lever to connect the screw holder and the elevation device and rotate when the screw holder moves up or down. The motor assembly includes: a driving motor; and a power transmission unit to transmit power from the motor to the screw unit, and the screw is disposed to be inclined with respect to a vertical line passing in a top-bottom direction of the refrigerator.

Abstract: The present invention provides a refrigerator comprising a cabinet having a storage chamber; an inner case forming the exterior of the storage chamber; a first door pivotally provided to the cabinet and opening and closing one side of the storage chamber; a second door having a pillar rotated so as to come into contact with the first door, pivotally provided to the cabinet, and opening and closing the other side of the storage chamber; and a driving member provided at a lower end of the second door so as to move together with the second door, and operating the pillar so as to fold or unfold the pillar, wherein the pillar has a first catching protrusion and a second catching protrusion, which are selectively caught by the driving member.

Abstract: A refrigerator includes a cabinet having a storage chamber, an inner case that defines the storage chamber, a first door rotatably installed on the cabinet and configured to open and close one side of the storage chamber, a second door that includes a pillar configured to rotate and contact the first door and that is installed on the cabinet and configured to open and close another side of the storage chamber, and a transfer member provided inside the inner case and configured to sense rotation of the second door and to guide rotation of the pillar. The transfer member includes a lifting guide portion that is configured to, based on the pillar approaching the lifting guide portion, move downward and contact the pillar while the pillar remains unfolded.

Abstract: The present invention provides a refrigerator comprising a cabinet having a storage chamber; an inner case forming the exterior of the storage chamber; a first door pivotally provided to the cabinet and opening and closing one side of the storage chamber; a second door having a pillar rotated so as to come into contact with the first door, pivotally provided to the cabinet, and opening and closing the other side of the storage chamber; and a driving member provided at a lower end of the second door so as to move together with the second door, and operating the pillar so as to fold or unfold the pillar, wherein the pillar has a first catching protrusion and a second catching protrusion, which are selectively caught by the driving member.

Abstract: The present invention provides a refrigerator comprising a cabinet having a storage chamber; an inner case forming the exterior of the storage chamber; a first door pivotally provided to the cabinet and opening and closing one side of the storage chamber; a second door having a pillar rotated so as to come into contact with the first door, pivotally provided to the cabinet, and opening and closing the other side of the storage chamber; and a driving member provided at a lower end of the second door so as to move together with the second door, and operating the pillar so as to fold or unfold the pillar, wherein the pillar has a first catching protrusion and a second catching protrusion, which are selectively caught by the driving member.

Abstract: The present invention provides a refrigerator comprising: a cabinet having a storage chamber; an inner case that forms the exterior of the storage chamber; a first door rotatably installed on the cabinet so as to expose/cover one side of the storage chamber; a second door having a pillar that rotates such that the same can contact the first door, the second door being rotatably installed on the cabinet so as to expose/cover the other side of the storage chamber; and a transfer member provided on the inner case so as to sense the rotation of the first door and to guide the rotation of the pillar.

Abstract: The present invention provides a refrigerator comprising a cabinet having a storage chamber; an inner case forming the exterior of the storage chamber; a first door pivotally provided to the cabinet and opening and closing one side of the storage chamber; a second door having a pillar rotated so as to come into contact with the first door, pivotally provided to the cabinet, and opening and closing the other side of the storage chamber; and a driving member provided at a lower end of the second door so as to move together with the second door, and operating the pillar so as to fold or unfold the pillar, wherein the pillar has a first catching protrusion and a second catching protrusion, which are selectively caught by the driving member.

Abstract: The present invention provides a refrigerator comprising: a cabinet provided with a storage chamber; an inner case that forms the exterior of the storage chamber; a first door rotatably installed on the cabinet so as to open/close one side of the storage chamber; a second door having a pillar that rotates such that the same can contact the first door, the second door being rotatably installed on the cabinet so as to open/close the other side of the storage chamber; and a transfer member provided inside the inner case so as to sense rotation of the second door and to guide rotation of the pillar, wherein the transfer member comprises an up/down movement guide portion that moves downward, when the pillar approaches, and contacts the pillar while the pillar remains unfolded.

Abstract: The present invention provides a refrigerator comprising: a cabinet having a storage chamber; an inner case that forms the exterior of the storage chamber; a first door rotatably installed on the cabinet so as to expose/cover one side of the storage chamber; a second door having a pillar that rotates such that the same can contact the first door, the second door being rotatably installed on the cabinet so as to expose/cover the other side of the storage chamber; and a transfer member provided on the inner case so as to sense the rotation of the first door and to guide the rotation of the pillar.